optional C++ is a blog, which is about writing a C++ optional implementation from scratch. You can find the blog here. This repository contains both, the blog and the source code of the optional implementation.
Before you are trying to build the project, please make sure, that you checked out the submodules as well, using e.g.
git submodule update --init.
cd optionalcpp
mkdir build
cd build
cmake ..
cmake --build . && ./test_optionalcpp
In order to format the code, please stick to clang-format-10; using another version of clang-format will result in
reformatting the whole code base.
clang-format-10 -i include/optional.hpp
clang-format-10 -i tests/tests.cpp